What is CVE-2023-4827?

CVE-2023-4827 is a high-severity vulnerability in Ninjateam Filester, classified under CWE-352 CROSS-SITE REQUEST FORGERY (CSRF). CVSS score: 8.8/10. Published 2023-10-16.

How severe is CVE-2023-4827?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-4827 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ninjateam Filester

CVE-2023-4827

The File Manager Pro WordPress plugin before 1.8 does not properly check the CSRF nonce in the `fs_connector` AJAX action. This allows attackers to make highly privileged users perform unwanted file system actions via CSRF attacks by using GET requests, such as uploading a web shell.

Published 2023-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.079 (94.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.068 · newest: 0.079 · change: +0.010

Affected products

Ninjateam Filester
File Manager Pro — versions 0

Public proof-of-concept exploits

References

wpscan.com/vulnerability/d4daf0e1-8018-448a-964c-427a355e005f (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-4827?: CVE-2023-4827 is a high-severity vulnerability in Ninjateam Filester, classified under CWE-352 CROSS-SITE REQUEST FORGERY (CSRF). CVSS score: 8.8/10. Published 2023-10-16.
How severe is CVE-2023-4827?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-4827 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.